Improvement in stem setting watches



J. JURGENSEN.

Watch.

No. 61,207. Patented Jan. 15, 1867.

N. PETERS, PHOTO-UTHOGRAPNER, WASHINGTON. D C.

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IMPROVEMENT IN STEM SETTING WATCHES.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JULES Jil'RGENsEN, formerly of Copenhagen, in thekingdom of Denmark, but now of Locle, in the republic of Switzerland,have invented a certain new and useful Improvement in Stem SettinWatches; of which the following is a full, clear, and exact description,reference being had to the accompanying drawing, which forms part ofthis specification, and in which Figure 1 represents,.on anenlargedscale, a side or face view in section of a watch case, with stem andpendent bow attached, and such portion of the interior mechanism asrelates to my invention.

Figure 2, a transverse section of the same; and

Figure 3, a similar view, representing in black and red lines difierentpositions of certain parts or devices, as controlling the setting of thehands by or at the stem.-

Like letters refer to like parts in all the figures.

In stem setting watches, as previously constructed, it has been usual,in addition to the stem-turning gear, whereby the hands are adjusted orset forward or backward as required, to employ a pin or spring, arrangedto protrude from the case, and requiring a separate application ofpressure or force, say by the thumb or finger, before and whilst turningthe rotating device at the stem, for the purpose of locking the latterat pleasure, as

equircd, with the cannon or minute hand operating pinion of the watch.This, however, is very objectionable, not only on account of the doublemanipulation requisite to set the hands, but also on account of theliability to accidental and improper adjustment of them by some casualoutside contact with and action on the stemgearing pin or spring, andturning of the attachment that is used for setting the hands; To obviatethis is one of the objects of my improvement, by making automatic,consequent on the adjustment of the pendent bow of the stem, when thecap or a portion of the case only is open, the gearing of the rotatingdevice at the stem with the cannon'pin on of the watch; and my inventionfurther consists, independently of its being governed by the opening ofthe cap, in making the pendent bow control the action of the rotatingdevice at the stem; also, in the employment of certain mechanism wherebythe same is effected.

For the information of those whom it may concern, I will now proceed todescribe my improvement, as illustrated in the accompanying drawing,wherein A is the rim of the case; B the pendant 0r stemofthe watch; andO the bow or pendent ring. This bow .is divided where it is hung in thestem, so as to admit of a spindle, D, passing up through the latter.Said spindle is provided with a milled cap or rose-head, a, on itsexterior end, to facilitate the turning of it by the fingers in settingthe hands of the watch, and passing through the rim into the body of thecase, and, supported by suitable bearings, it carries, near its oppositeor inner end, a clutch, b, the inner face of which is made to form, orhas attached to it, a contrate wheel, 0. The clutch b is made to turnwith the spindle D, and also to slide longitudinally on it, for thepurpose of throwing said spindle, by the contrate wheel 0, in or out ofgear with a pinion, cl, that meshes, through a train of spur-wheels orpinions, ef, with the cannon pinion g of the watch. On one end, 8, ofthe bow C, where it enters the stem, is an eccentric-pin or projection,m, which is so pitched in relation to a sliding-rod or pin, It, passingfrom the stem into the body of the case, that when the bow is extended,as in figs. 1 and 2, it is out of gear or contact with said sliding-rod,and remains so even when the bow is turned down on the closed cap E, orother stop or guard to it, but on opening or removing the guard, sayopening the cap E, to see the positionof the hands and amount ofadjustment necessary to give them, then, on turning the bow 0 yetfurther down, as represented by.red lines in fig. 3, which the removalof the stop or guard or opening of the cap now admits of, the eccentricpin m is brought to bear and press inward the sliding-pin it, thattouches and compresses a spring, 2', extendingpartly around the rim onthe inside of the case. This spring exerts a tendency to keep pressedoutward th c sliding-pin k, that when forced inward by the action of theeccentric-pin connected with the bow, as described, in compressing saidspring, causes the latter to bear and drive inward a branch or arm, j,of a spring clutch lever, it, said branch or arm working through asuitable guiding cavity or aperture in a fixed bracket or plate, Z, andthe free end of the clutch lever is being forked to fit the clutch b.The lever 7r being forced inward or compressed, it being of a spring orelastic character at its attachment, n, to the case, causes the clutch bto be slid inward, and with it the oontrate wheel 0, which isacoordi lythrown into gear with the pinion 0 Z, so that by turning the milled capa of the spindle D to the right or to the left, the hands of the watchare set forward or backward as required. But on again throwing back or-etending, or commencing to lift the bow G, the eccentric-pin m'isreleased from pressure on the sliding-rod h, which the springz' throwsoutward, while the spring clutch lever k, in being relieved from theaction of the spring 27, also shoots back and draws with it the clutchthat detaches the contrate wheel a from gear with the pinion d, so thatturning the milled cap a and spindle D will have no efi'ect upon thesetting mechanism of the watch, and theshutt ing to againof the cap E,or putting into action the stop or guard, secures or looks the same outof gear without regard to the position of the bow, that may then beeither closed or extended. The winding of the watch at the stem orotherwise may be effected by any suitable means, which it is notnecessary here to describe.

What I claim as my invention, and desire to secure by Letters Patent, isas follows:

1. In combination with mechanism for setting the hands of the watch, Iclaim the pendent bow 0, constructed and arranged so that by itsmovement said mechanism is thrown in or out of gear, substantially asspecified.

2. The combination of the cap or guard E with the pendent how 0 andhand-setting mechanism, whereby the said cap, while closed, is made toprevent the bow from throwing the hand-setting mechanism in gear,essentially as specified.

3. The combinationof the spindle D, pendent bow C, with itseccentric-pin m, sliding-rod h, spring 2', clutch lever is, clutch b,contrate wheel 0, and pinion d, in gear with the cannon pinion of thewatch, substantially as shown and described.

JU'LES JURG-ENSEN.

Witnesses:

, SAM. J. HUBER, Ls. Moccnni},

